Main.hs
  MyProject
    Test
      A
        test #1 for A:    OK
        test #2 for A:    OK
        X
          test #1 for AX: OK
          test #2 for AX: OK
        Y
          test #1 for AY: OK
          test #2 for AY: OK
        Z
          test #1 for AZ: OK
          test #2 for AZ: OK
      B
        test #1 for B:    OK
        test #2 for B:    OK
      C
        A
          test #1 for CA: OK
          test #2 for CA: OK
        B
          test #1 for CB: OK
          test #2 for CB: OK

All 14 tests passed